Just posting for info.....after testing my c/4 build i will say the Champ converters 2,000/2,200 custom converter stalls at 2,100 rpm and really wakes up off the line performance......the Transgo stage 2 reprogramming kit eliminates the between shift flair up and shifts fast and firm......other mods were v8 clutch drums, c/6 front pump bearing and an A code servo......also swapped the green dot valve body for a 67 select o shift........motor specs in sig.......